I grew up in Chicago and I'll be going to school there thus fall. In Chicago you have to be a cop to own one in the city. My cousin lives in cook county, in lemont, and he ccan own one. It depends on you're city/township.

Hey Winds, this last summer I "built" my first AR. If someone was shipping you a lower you would just have to have it go through a FFL as the lower is the registered part. It's easier just to go to the LGS and either buy a stripped lower if you want to build it or a complete lower. Then you can purchase the upper or LPK (lower parts kit) online without a FFL